A BELLE EPOQUE GEM-SET ENAMEL BROOCH Designed as an independently-set pear-shaped cabochon opal, within an openwork old European-cut diamond surround, enhanced by green enamel paisleys, each centering upon an old European-cut diamond single-cut emerald
An and ca Centrally-set with an old brilliant-cut diamond within an openwork quatrefoil set with alternating rows of calibré-cut emeralds and rose-cut diamonds, accented with circular-cut emerald and single-cut diamond flowers, principal diamond approx.
An Art Deco sapphire and diamond brooch. Of old brilliant-cut diamond-set openwork stylised shield-shape design with central pear-shaped sapphire collet and cushion-shaped sapphire cluster flared terminal, circa 1930 by amelia
DIAMOND AND SAPPHIRE BROOCH, FRENCH, CIRCA 1930 The openwork rectangular plaque pierced in a floral motif, set in the center with an old European-cut diamond weighing approximately 1.50 carats, completed by numerous old European-cut and single-cut diamonds weighing approximately 4.50 carats, accented further with calibré-cut sapphires, mounted in platinum, French assay marks.